• The Journal of Society for e-Business Studies
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• v.7 no.3
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• pp.21-48
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• 2002

ebXML is the international technical framework specification that enables Internet-based B2B electronic business using XML, It was standardized by UN/CEFACT and OASIS on May 2001. Registry and Repository is the core of ebXML. It supports registry services which is composed of object management service and object query management service. The object management service manages the object's life cycle and the object query management service provides a mechanism to approach metadata of stored objects. Up to now, implementations of ebXML Registry object query management system don't support full functions of the specification completely. We implemented all the functions of ebXML Registry Service Specification vl.0. This system supports Browse ＆ Drilldown Query, Filter Query, SQL Query, and Object Retrieval Query services. And it also supports Content-based Query service which is not specified in the ebXML RS specification. The Content-based Query service is a repository service which makes it possible In pose content based queries of repository items and which will be specified on the RS specification v2.0.

• Proceedings of the Korea Database Society Conference
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• 1998.09a
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• pp.475-505
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• 1998

With rapid progresses in information technologies, managing enterprise network resources as a whole becomes more important. Telecommunication Management Network (TMN) has been used to integrate network elements. TMN is complex to develop and manage because it has a centralized management service. Common Object Request Broker Architecture (CORBA) can overcome this complexity by the use of transparent distributed object processing mechanism. Therefore, the main objective of this paper is to integrate TMN service with CORBA. A network management repository is built for this integration. In addition, a prototype that can partially support network management service is implemented to illustrate the usefulness of this repository.

• Journal of KIISE:Computing Practices and Letters
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• v.9 no.6
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• pp.589-601
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• 2003

XLink is XML Linking Language that defines links between XML documents or XML elements. It uses XML syntax to create structures that can describe links similar to the simple unidirectional hyperlinks of HTML, as well as more sophisticated links. There exist several relationships between resources that linked by XLink. Without supports from XML Repository for these relationship management, there is a huge overhead related to the management of relationships during both application development and maintenance, since the relationships need to be hard-coded directly into the application program itself. In this paper, we propose an XLink supporting system in object repository. We describe the design and implementation of this system on top of XDOM(persistent DOMlink XML repository). To support XLink, our system offers referential relationship semantics, extended link and the expansion of DOM tree for XLink.

• Convergence Security Journal
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• v.3 no.3
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• pp.59-66
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• 2003

In this paper the CORBA security services is designed and implemented conforming to the CORBA Security Services Specification. We implemented a Security Information Management system for object-oriented distributed systems based onthe CORBA (Common Object Request Broker Architecture) Security specification baseed on Repository.

• The Transactions of the Korea Information Processing Society
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• v.6 no.6
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• pp.1433-1446
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• 1999

A repository s a system for management not only simple information using database but also complex and various information resources. a standard for implementation of a repository is now IRDS, but is does not support distributed-object environment. Therefore, in this paper, we design and implement IRDS-based repository on distributed-object environment. For implementation, we use ISO IRDS as a repository supporting object-oriented concepts, and choice the CORBA to support the distributed-object technology. Implemented contents are metadata table and service interface based on core functionality to be proposes at IRDS, and window-based user interface to use them, Also, we apply it to the workflow management system and test its practical usefulness.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11c
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• pp.1517-1520
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• 2003

Java 의 사용 영역이 일반 응용 프로그램 뿐 아니라 가정용 기기에까지 널리 사용되고 있다. 이러한 환경에서 다량의 XML 데이터를 다룰 경우 제한된 메모리를 사용을 보장하면서 객체의 지속성(persistency)를 보장하는 시스템이 필요하다. 이에 본 논문에서는 순수 Java 객체의 지속성을 보장하는 시스템인 XFS 를 구현하였다. XFS 는 쓰레드 환경에서 뛰어난 동시성을 보장하며 임의의 Java 객체의 지속성을 보장하므로 확장성이 뛰어나다. 또한 물리적 모델과 논리적 모델을 분리하여 응용 프로그램을 독립성을 증가시켰다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.12
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• pp.1588-1595
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• 2019

This paper presents the technique on structuring information of the diagram repository for UML diagrams. Because object interactions are the body of object-oriented programming, this paper handles especially the sequence diagrams and class diagrams among UML diagrams. Based on class diagrams, sequence diagrams represent the procedure of object interactions in run-time and then the corresponding codes are generated from the contents of those sequence diagrams. To do this work, this paper presents a method to construct the information repository for generating code from the contents of sequence diagrams. This paper classifies the five message types of sequence diagrams and then extracts the needed information including items and values on the corresponding message types for constructing message repositories. Because sequence diagram is composed of messages included, the final repository is constructed by collecting each of structured repositories on messages sequentially.

• Journal of the Korea Society of Computer and Information
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• v.15 no.12
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• pp.151-162
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• 2010

In order to build up the ubiquitous computer environment, there are many researches on automatic identification, sensor networks, and home networks etc. EPCIS (EPC Information Services), which is proposed by EPCglobal, is a standard on the repository managing tag data that is needed to develop RFID application system. In this paper, the EPCIS repository is designed and implemented. It is able to search the object dependent upon general object recognition and environment information variation. And sensor data, which is also massive data and is changed with position, is integrated into RFID data in the system. By doing so, it is possible to do the convergence managements of object recognition with variations of USN (Ubiquitous Sensor Network) environment.

• Journal of KIISE:Computing Practices and Letters
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• v.9 no.3
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• pp.332-340
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• 2003

XML is an emerging internet standard for data representation and exchange on the web. Recently, many researches on storing XML documents are in progress. Since XML documents have an implicit semantic schema, it is difficult to store XML data into a DBMS or File System. This paper introduces XDOM, object repositories for the DOM object, which stores an object for persistency support. As XDOM does not require the burdensome design of a fixed schema unlike the legacy DBMS, can store schema-less XML documents. And it can help XML applications to access the DOM object transparently from the object repositories below memory. XDOM introduced in this paper is implemented in pure Java and evaluated using experiments.

• Journal of Internet Computing and Services
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• v.3 no.1
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• pp.71-80
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• 2002

UML is an object-oriented development methodology to graphically modeling, a software system, We are developed UML, graphics editor and its generating various design objects during software development cycle. Its design object compose of semantics information and View information manage using of RDBMS. Extant tools supporting UDML. however, it does not have an explicit format to describe and interchange its design abject intentionally, In this thesis, to overcome the drawback, the UML design object interchange and presents our efforts to make UML design objects highly interoperable. We developed an interchange format called UDXF(UML Design object exchange Format) based on XML UDXF is a simple and well-structured format to encode UML design objects. It leverages the tool interoperability, team development and reuse of design objects by interchanging the model information with the XML standard. Also, we propose design object repository manager for design object of UDXF format.